//=================================================================================================
/*!
//  \file src/util/logging/FunctionTrace.cpp
//  \brief Source file for the FunctionTrace class
//
//  Copyright (C) 2013 Klaus Iglberger - All Rights Reserved
//
//  This file is part of the Blaze library. You can redistribute it and/or modify it under
//  the terms of the New (Revised) BSD License. Redistribution and use in source and binary
//  forms, with or without modification, are permitted provided that the following conditions
//  are met:
//
//  1. Redistributions of source code must retain the above copyright notice, this list of
//     conditions and the following disclaimer.
//  2. Redistributions in binary form must reproduce the above copyright notice, this list
//     of conditions and the following disclaimer in the documentation and/or other materials
//     provided with the distribution.
//  3. Neither the names of the Blaze development group nor the names of its contributors
//     may be used to endorse or promote products derived from this software without specific
//     prior written permission.
//
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
//  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
//  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
//  SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
//  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
//  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
//  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
//  DAMAGE.
*/
//=================================================================================================


//*************************************************************************************************
// Platform/compiler-specific includes
//*************************************************************************************************

#include <blaze/system/WarningDisable.h>


//*************************************************************************************************
// Includes
//*************************************************************************************************

#include <sstream>
#include <boost/format.hpp>
#include <blaze/util/logging/FunctionTrace.h>
#include <blaze/util/logging/Logger.h>
#include <blaze/util/SystemClock.h>


namespace blaze {

namespace logging {

//=================================================================================================
//
//  CONSTRUCTORS
//
//=================================================================================================

//*************************************************************************************************
/*!\brief Constructor for the FunctionTrace class.
//
// \param file The name of the file the traced function is contained in
// \param function The name of the traced function
*/
FunctionTrace::FunctionTrace( const std::string& file, const std::string& function )
   : file_    ( file     )  // The file name the traced function is contained in
   , function_( function )  // The name of the traced function
{
   // Writing the trace information
   std::ostringstream oss;
   oss << "[TRACE   ]";

   // Writing the elapsed time
   const time_t elapsed( theSystemClock()->elapsed() );
   const time_t hours  ( elapsed / time_t( 3600 ) );
   const time_t minutes( ( elapsed % time_t( 3600 ) ) / time_t( 60 ) );
   const time_t seconds( elapsed % time_t( 60 ) );
   oss << boost::format( "[%03d:%02d:%02d]" ) % hours % minutes % seconds;

   // Writing the message string
   oss << " + Entering function '" << function_ << "' in file '" << file_ << "'\n";

   // Logging the message string
   boost::shared_ptr<Logger> logger( Logger::instance() );
   logger->log( oss.str() );
}
//*************************************************************************************************




//=================================================================================================
//
//  DESTRUCTOR
//
//=================================================================================================

//*************************************************************************************************
/*!\brief Destructor for the FunctionTrace class.
*/
FunctionTrace::~FunctionTrace()
{
   // Writing the trace information
   std::ostringstream oss;
   oss << "[TRACE   ]";

   // Writing the elapsed time
   const time_t elapsed( theSystemClock()->elapsed() );
   const time_t hours  ( elapsed / time_t( 3600 ) );
   const time_t minutes( ( elapsed % time_t( 3600 ) ) / time_t( 60 ) );
   const time_t seconds( elapsed % time_t( 60 ) );
   oss << boost::format( "[%03d:%02d:%02d]" ) % hours % minutes % seconds;

   // Writing the message string
   oss << " - Leaving function '" << function_ << "' in file '" << file_ << "'\n";

   // Logging the message string
   boost::shared_ptr<Logger> logger( Logger::instance() );
   logger->log( oss.str() );
}
//*************************************************************************************************

} // namespace logging

} // namespace blaze
